My PLC (Programmable Logic Controller) Experience

  • Engineering world
  • kata
    • kata lucu
    • kata bijak
    • kata mutiara
    • kata cinta
    • kata gokil
  • lucu
    • gambar lucu
    • pantun lucu
    • tebakan lucu
    • kata lucu
    • cerita lucu
  • berita
    • berita unik
    • berita politik
    • berita artis
    • berita aneh
  • kesehatan
    • asam urat
    • kanker
    • jantung
    • hepatitis
    • ginjal
    • asma
    • lambung
  • gambar
    • gambar unik
    • gambar lucu
    • gambar aneh
    • gambar animasi
    • video lucu
  • hoby
    • burung
    • ikan
    • piaraan
  • contoh
    • surat lamaran
    • recount text
    • descriptive text
    • curriculum vitae
    • deskripsi
  • video
    • video lucu
    • video hantu
    • video polisi
    • video totorial
    • video panas
    • video lagu
  • blog
    • SEO
    • template
    • script
    • widget
    • backlink
    • imacros
  • komputer
    • excel
    • macro excel
Home » Chemical Engineering » Chemical Plant » Control System » Learning Curve » Study » My PLC (Programmable Logic Controller) Experience

My PLC (Programmable Logic Controller) Experience

At work there are still a lot of things to be done. The latest, hottest and interesting job in my list is the PLC (programmable logic controller) upgrading in my plant and control room. For me, this is a very enriching project and an excellent learning experience for me. All these while, I've been monitoring the temperature, flow rate, pressure, utilities, processes, costing, equipments, instrumentations, reports etc., but now I'm going to get myself a little bit familiar with the plant control system. Previously, at university, I don't really fancy process control; and advance control subjects, but now, I'm beginning to be develop some interest in them. However, if I'm not mistaken, the subjects don't really touched a lot of PLC stuffs.

OK, back to the present moment. Every process plant must have their own PLC to run the process or production plant. If not, the plant operators have to switch the pump, flow meter or other instruments manually and that's impossible at this era. It will be very difficult for them to control and monitor a running plant.

Lets see some definitions of PLC. According to Wikipedia: "A PLC is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Unlike general-purpose computers, the PLC is designed for multiple inputs and output arrangements, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact. A PLC is an example of a real time system since output results must be produced in response to input conditions within a bounded time, otherwise unintended operation will result."

A non-technical term to describe a PLC: A PLC is the type of computer that controls machines. The PLC is used to control and troubleshoot machine. The PLC is the brain of the machine. Without it, the machine is dead.

For the past few days, I've been studying the input/output (I/O) arrangements at the control panel. These connect the PLC to sensors and actuators. PLCs read limit switches, analog process variables (such as temperature and pressure), and the positions of complex positioning systems. On the actuator side, PLCs operate electric motors, pneumatic or hydraulic cylinders, magnetic relays or solenoids, or analog outputs. The input/output arrangements have external I/O modules attached to a computer network that plugs into the PLC. The I/O points consists of digital input, digital output, analog input and analog output. I checked them and counted how many spare I/O points are available to be used for additional pressure transmitter, RTD, inverter and pump that we're going to install (which is part of some slice of plant upgrading projects).

Hmmm....I guessed, that's enough for some brief introduction on the PLC. I may continue about my PLC adventure in future.
Ditulis oleh Bidadari, Senin, 29 Oktober 2007 08.06- Rating: 4.5

Judul : My PLC (Programmable Logic Controller) Experience

Deskripsi : At work there are still a lot of things to be done. The latest, hottest and interesting job in my list is the PLC ( programmable logic cont...
keyword :My PLC (Programmable Logic Controller) Experience, Chemical Engineering, Chemical Plant, Control System, Learning Curve, Study

Belum ada komentar untuk "My PLC (Programmable Logic Controller) Experience"

Posting Komentar

Posting Lebih Baru
Posting Lama
Beranda
Langganan: Posting Komentar (Atom)
Postingan Populer
  • Dipping Tape and Measuring Oil Tonnage
    In oil industry or oil plant, there are a lot of oil storage tanks available. It is vital for the oil company to know their daily oil stock ...
  • (tanpa judul)
    Density Estimation for 2-Phase Mixture What is a good correlation to estimate the density of a two-phase mixture that is mostly vapor or ope...
  • Industrial Tools at their Best
     What exactly are industrial tools? Let me provide my understanding on what industrial tools actually are. Briefly, industrial tools are equ...
  • Steam Trap Failure Issue
    As I read through the "Expert Q and A - Timely Detection of Steam Trap Failure " post in the Chemical Engineering Blog, I was cal...
  • Plate Heat Exchanger at Lonsdale Energy Corporation
    The following photos of equipments (which include plate heat exchangers) and information are taken/supplied by Mr. Douglas Dunn from BCExplo...
  • My Ph.D progress and some sharing
    After 2 months doing my research attachment in School of Chemical Engineering and Advance Material (CEAM), Newcastle University, I finally ...
  • Power Surge From Local Power Supplier
    There are simply a lot of problems in a processing or a production plant. I did mentioned a broad or general ideas on the problems before t...
  • Human Body Fun Facts
    Enough about chemical engineering stuff for a while. Let's look at some bio-cool stuffs for a moment. Look at your body. The human body ...
  • Wooden Cooling Tower Drift Eliminators Get Dirty
    The following photos illustrates the cooling tower infills and drift eliminators. That's why after some period of time we need to clean ...
  • How to Make Biodiesel From Algae
    While awareness of biodiesel and running diesel engines on vegetable oil is growing, you still have to get the oil from somewhere. The conve...

Info Engineering world © My PLC (Programmable Logic Controller) Experience